Condenser for automobile radiators



l I M I 5 Da 0 V A I D A R SE 1 Em 0U R .R Dm w s N E D N O C June 28 1927.

Filed April 9, 1926 0 m J'M WIT SSES O ATTORNEYS Patented June 28, 1927.

nsirsns'rerss GEORGE n. ROBERTS, or HARTFORD, CONNECTICUT.

CONDENSER ron AuroM'oBILn nnnmroas.

Application and April 9,'

This invention relates to condensers especially adapted for use in connection with the water cooling systems of automobiles.

- Briefly stated, an important objectof this invention is to provide a novel form of condenser adapted to be applied to the neck of an automobile radiator so that the vapor which forms as a result of the employment of non-freezing solutions may be effectively condensed and returned to the radiator to avoid the necessity of frequently replenishing the supply of fluid in the rat iator.

A further object is to providea condenser. of the character specifier which may be employed in connection with standard automo-' bile radiators without changingthe construction or design of the same and without marring the appearance of the autou lobile. A further and equally important'object of the invention is to provide condenser of the character specified which is of highly simplified construction, durable in use, and cheap to manufacture.

Gther objects and advantages will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a front elevation proved condenser applied.

Figure 2 1s a vertical sectional view through the improved condenser.

Figure 3 is a horizontal sectional view taken on line 38 of Fig. 1.-

In the drawing wherein for the purpose of illustration is shown a. preferred embodiment of the invention the numeral 5 designates an internally or externally threaded cap of a suitable 'material and which as shown in the drawing is adapted for attachment to the neck of a conventional automo bile radiator. I

Figure 2 illustrates that the attaching stem 6 of a body or annulus 7 is extended through the top of thecap 5 and is securely held in place by means of a lock nut 8. Suitable washers may. of course be employed between the lock nut 8 and the opposed side of the cap. Figure 1 plainly illustrates that the stem 6 may be provided with an annular shoulder to engage the top of the cap 5 and thereby cooperate with the lock nut 8 in holding the annulus 7 in place.

Figure 1 illustrates that a condensing tube of the imtoday. The employment of the retaining 192a senn No. 100,926.

10 of serpentine formation is positioned within the annulus 'T and provided with an arcuate inlet liirau'ch. 11 adapted for the reception of that'vapor which collects in the neck of the radiator. The inlet branch 11 extends from a point adj .nt the end ofthe stem 6 and lies more or less closely in contact with the inner wall of the annulus 7- and has connection with the serpentine tube 10. The

brancl'ies of the serpentine tube 10 are all arranged in the same plane and entend at right angles to the path of travel of the vehicle so that the rush of air agaiust the same will effectivelycondense the vapor therein.

In carrying out theinvention thewlowermost portion of the serpentine tube is eX- tended below the cap 5 to define an outlet branch it by means of which the condensed fluid is returnedto the radiator.

Attention is directed to the fact that. the I terminal of the outlet branch 14 is adapted to be positioned'below the level. of the water in the radiator so that vapor is prevented from entering the serpentine tube byway of the outlet branch.

The connecting branches of the serpentine tube are confined between and are engaged by flat retaining rings 20 which as shown in Figure 1 are secured'to the annulus 7 by fastening devices 22.

As illustratedin Fig. 1 the branches of the serpentine tube are all inclined downwardlyso that the products of condensation will not be trapped, but will be permitted to move downeasily into the radiator neck.

The appearance of the improved condensing device is not unlike that of the motor meter so common on automobile radiators of rings 20 provides a simple and reliable means for securing the serpentine tube in place and for allowing free access'of air to the major portionsof the connecting branches of the condensing tube.

-The arrangement illustrated provides for the quick and economical assembly of the device and makes it a simple vmatter to remove the serpentine tube or any part of the device for the purpose of repair or replacement.

In carrying out the invention the stem 6 may be'provided with a vent tube 33 to prevent the condenser from becoming air bound and to provide a free outlet in case of ab- 119 normal boiling of the contents of the radiator. I

Figure 1 illustrates that the lower end of the longitudinal vent tube 33 is internally reduced so that it is partially closed to prevent rush of water up the vent when stopping the car. n

Having thus described the invention, what is claimed is:

1. A condenser for automobile radiators comprising a cap adapted for attachment to an automobile radiator neck, a body having a stem connected to said cap, a serpentine tube positioned within the said body and having a plurality of communicating downwardly inclined branches tor the passage of fluid, and keeper plates detachably secured to opposite sides of said body and detachably holding said serpentine tube in place.

2. A condenser for automobile radiators comprising a cap adapted for attachment to an automobile radiator neck, a body having a stem connected to said cap, a serpentine tube positioned within the said body and having a plurality of connnunicating clownwardly inclined branches for the passage of fluid, and keeper plates detachably secured to opposite sides of said body and detachably holding said serpentine tube inplace, there being an outlet branch connecteo to one of the branches 01' the serpentine tube and adapted to be extended below the level of the water in the radiator.

3. A condenser for use in connection with automobile radiators comprising a cap adapted for attachment to an automobile radiator neck, a body having a stem connected to said body, a serpentine tube arranged within the body and having communicating branches adapted for thepassage of fluid, one end portion of said tube being arranged in arcuate "formation and extending through said stem to define a vapor inlet, and an outlet connected to the other end of said serpentine tube and adapted to be eX- tended below the level-0t the water in the radiator. v

In testimony whereof I aiiix my signature.

GEORGE D. ROBERTS. 

